The GA Procedure
- Overview
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Getting Started
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SyntaxPROC GA StatementContinueFor CallCross CallDynamic_array CallEvaluateLC CallGetDimensions CallGetObjValues CallGetSolutions CallInitialize CallMarkPareto CallMutate CallObjective FunctionPackBits CallProgramming StatementsReadChild CallReadCompare CallReadMember CallReadParent CallReEvaluate CallSetBounds CallSetCompareRoutine CallSetCross CallSetCrossProb CallSetCrossRoutine CallSetElite CallSetEncoding CallSetFinalize CallSetMut CallSetMutProb CallSetMutRoutine CallSetObj CallSetObjFunc CallSetProperty CallSetSel CallSetUpdateRoutine CallShellSort CallShuffle CallUnpackBits FunctionUpdateSolutions CallWriteChild CallWriteMember Call
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DetailsUsing Multisegment EncodingUsing Standard Genetic Operators and Objective FunctionsDefining a User Fitness Comparison RoutineDefining User Genetic OperatorsDefining a User Update RoutineDefining an Objective FunctionDefining a User Initialization RoutineSpecifying the Selection StrategyIncorporating Heuristics and Local OptimizationsHandling ConstraintsOptimizing Multiple Objectives
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Examples
- References
call GetSolutions ( sol, n, seg ) ;
The GetSolutions call retrieves solutions from the current generation. The inputs to the GetSolutions subroutine are as follows:
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sol |
is an array to receive the solution elements. |
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n |
is the number of solutions to get. |
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seg |
is the segment of the solution to retrieve. |
The GetSolutions subroutine is used to retrieve solutions from the current generation. You would normally call it from an
update or finalize subroutine for post processing or analysis. If the elite parameter has been set with a SetElite call, then the first elite members of the population are the fittest, and they are sorted in order, starting with the most fit. The sol variable should have two dimensions, with the first dimension representing the solution number, and the second representing
the element within the solution. For example, if the encoding of the problem was I10, then ![$\emph{sol}[2,3]$](images/orlsoug_ga0028.png){kind=small}
would be the value of the third element of the second solution in the current population. For real, integer, Boolean, and
sequence encoding, each solution element is mapped to the corresponding element of the sol array. The seg parameter specifies the solution segment desired. For example, if the encoding was set in the SetEncoding call to 'R10I5', then segment 1 is R10 and segment 2 is I5.